Genetic evidence in planar cell polarity signaling pathway in human neural tube defects

Chunquan Cai1, Ouyan Shi

  • 1Department of Surgery, Tianjin Children's Hospital, Tianjin, 300074, China.

Frontiers of Medicine
|December 6, 2013
PubMed

Insights

Neural tube defects (NTDs) are birth anomalies influenced by genetics. This review highlights how alterations in the planar cell polarity (PCP) pathway contribute to the development of human NTDs.

Area of Science:

  • Developmental biology
  • Genetics
  • Human pathology

Background:

  • Neural tube defects (NTDs) are serious birth anomalies with complex causes.
  • The planar cell polarity (PCP) pathway is crucial for embryonic development, including neural tube closure.

Purpose of the Study:

  • To review the role of the PCP signaling pathway in the etiology of human NTDs.
  • To summarize recent findings linking PCP gene alterations to NTD pathogenesis.

Main Methods:

  • Literature review of studies on PCP signaling and human NTDs.
  • Analysis of genetic and animal model data implicating PCP in NTD development.

Main Results:

  • The PCP pathway is essential for convergent extension (CE) during gastrulation and neural tube closure.
  • Alterations in PCP pathway genes are implicated in the pathogenesis of NTDs in both animal models and human populations.

Conclusions:

  • PCP pathway gene alterations are a contributing factor to the etiology of human NTDs.
  • Understanding PCP signaling is vital for investigating NTD causes and potential interventions.

Related Concept Videos

Neurulation01:30

Neurulation

Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the...
40.2K
Non-Canonical Wnt Signaling Pathways01:41

Non-Canonical Wnt Signaling Pathways

Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
6.4K
Determination01:51

Determination

During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In...
16.3K
Notch Signaling Pathway03:14

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
4.6K